899fe6170de613c120c29d9bac3aba2c1b74c7177e4754be562bc4c29c8ac2e5

Analysis

max time kernel
182s
max time network
211s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 18:21

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General

Target

899fe6170de613c120c29d9bac3aba2c1b74c7177e4754be562bc4c29c8ac2e5.exe
Size

124KB
MD5

5adee6d77b838a322255b3c8c4363a40
SHA1

411e609d7c3ca4e650b458dd1307cb334b97f292
SHA256

899fe6170de613c120c29d9bac3aba2c1b74c7177e4754be562bc4c29c8ac2e5
SHA512

674c87b6e5f195bc8e77501e92499b81ee46216956330bea193c52cebff66db5c475915066d4290983d1e330fd54cb32367a9cc6d09390448079245302f4352a
SSDEEP

3072:telXNPpgnqzM2beqB0S0UGXjHd+haE8mdkSz2:tuf3zj0S0UwQAE8mqSq

Score

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

899fe6170de613c120c29d9bac3aba2c1b74c7177e4754be562bc4c29c8ac2e5.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	899fe6170de613c120c29d9bac3aba2c1b74c7177e4754be562bc4c29c8ac2e5.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

899fe6170de613c120c29d9bac3aba2c1b74c7177e4754be562bc4c29c8ac2e5.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	899fe6170de613c120c29d9bac3aba2c1b74c7177e4754be562bc4c29c8ac2e5.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	899fe6170de613c120c29d9bac3aba2c1b74c7177e4754be562bc4c29c8ac2e5.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery
T1057

Processes:

tasklist.exe

pid process

3620 tasklist.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

tasklist.exe

description pid process

Token: SeDebugPrivilege 3620 tasklist.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

899fe6170de613c120c29d9bac3aba2c1b74c7177e4754be562bc4c29c8ac2e5.exe

pid process

2676 899fe6170de613c120c29d9bac3aba2c1b74c7177e4754be562bc4c29c8ac2e5.exe

pid	process
3620	tasklist.exe

description	pid	process
Token: SeDebugPrivilege	3620	tasklist.exe

pid	process
2676	899fe6170de613c120c29d9bac3aba2c1b74c7177e4754be562bc4c29c8ac2e5.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

899fe6170de613c120c29d9bac3aba2c1b74c7177e4754be562bc4c29c8ac2e5.execmd.exe

description	pid	process	target process
PID 2676 wrote to memory of 4228	2676	899fe6170de613c120c29d9bac3aba2c1b74c7177e4754be562bc4c29c8ac2e5.exe	cmd.exe
PID 2676 wrote to memory of 4228	2676	899fe6170de613c120c29d9bac3aba2c1b74c7177e4754be562bc4c29c8ac2e5.exe	cmd.exe
PID 2676 wrote to memory of 4228	2676	899fe6170de613c120c29d9bac3aba2c1b74c7177e4754be562bc4c29c8ac2e5.exe	cmd.exe
PID 4228 wrote to memory of 3620	4228	cmd.exe	tasklist.exe
PID 4228 wrote to memory of 3620	4228	cmd.exe	tasklist.exe
PID 4228 wrote to memory of 3620	4228	cmd.exe	tasklist.exe

C:\Users\Admin\AppData\Local\Temp\899fe6170de613c120c29d9bac3aba2c1b74c7177e4754be562bc4c29c8ac2e5.exe
"C:\Users\Admin\AppData\Local\Temp\899fe6170de613c120c29d9bac3aba2c1b74c7177e4754be562bc4c29c8ac2e5.exe"
1⤵
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2676

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c tasklist&&del 899fe6170de613c120c29d9bac3aba2c1b
2⤵
- Suspicious use of WriteProcessMemory
PID:4228

C:\Windows\SysWOW64\tasklist.exe
tasklist
3⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
PID:3620

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Process Discovery

T1057

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3620-136-0x0000000000000000-mapping.dmp

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memory/4228-135-0x0000000000000000-mapping.dmp

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